Your cart is empty.
Your cart is empty.Sloan optotypes are highly calibrated to a 5x5 grid. This grid helps to create a uniform difficulty throughout the 10 optotypes. Each optotype takes up a similar space and creates a uniform blur when they are out of a patient's visual acuity range. This is an essential factor that makes Sloan optotypes so reliable and accurate in visual acuity testing.
auntyjanny
Reviewed in the United States on August 7, 2017
Just what the nurse ordered!
Recommended Products
